Ad Age had this last week:

For "Paranormal State," a ghost-themed series premiering on A&E this week, a billboard using technology manufactured by Holosonic transmits an "audio spotlight" from a rooftop speaker so that the sound is contained within your cranium.

That's generated some privacy-related discussion on Slashdot, as well as the usual mentions of Minority Report.

Advertising Age abstract (subscription required to read full article)



Holosonic press release